this is an extension from a previous post I made Here which I could not get to work but I am now getting a new error after updating Selenium.
I am using Python 3.5,
I did not add geckodriver to PATH (it is located in the same directory as Python script), and after selenium update to 3.0.1 use this code to start selenium session:
gecko = os.path.normpath(os.path.join(os.path.dirname(__file__), 'geckodriver'))
binary = FirefoxBinary(r'C:\Program Files (x86)\Mozilla Firefox\firefox.exe')
driver = webdriver.Firefox(firefox_binary=binary, executable_path=gecko+'.exe')
Additionally: you need update geckodriver to the latest version 0.11.1.